Files
OpenRA/OpenRA.Game/Graphics/CursorProvider.cs
RoosterDragon f0f02dff5c Dispose of graphics resources deterministically.
Textures, FrameBuffers and VertexBuffers allocated by the Sdl2 Renderer were only being released via finalizers. This could lead to OpenGL out of memory errors since resources may not be cleaned up in a timely manner. To avoid this, IDisposable has been implemented and transitively applied to classes that use these resources.

As a side-effect some static state is no longer static, particularly in Renderer, in order to facilitate this change and just for nicer design in general.

Also dispose some bitmaps.
2014-12-22 17:34:01 +00:00

108 lines
3.4 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
* This file is part of OpenRA, which is free software. It is made
* available to you under the terms of the GNU General Public License
* as published by the Free Software Foundation. For more information,
* see COPYING.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using OpenRA.FileSystem;
using OpenRA.Primitives;
namespace OpenRA.Graphics
{
public sealed class CursorProvider : IDisposable
{
HardwarePalette palette;
Dictionary<string, CursorSequence> cursors;
Cache<string, PaletteReference> palettes;
readonly SheetBuilder sheetBuilder;
public static bool CursorViewportZoomed { get { return Game.Settings.Graphics.CursorDouble && Game.Settings.Graphics.PixelDouble; } }
public CursorProvider(ModData modData)
{
var sequenceFiles = modData.Manifest.Cursors;
cursors = new Dictionary<string, CursorSequence>();
palettes = new Cache<string, PaletteReference>(CreatePaletteReference);
var sequences = new MiniYaml(null, sequenceFiles.Select(s => MiniYaml.FromFile(s)).Aggregate(MiniYaml.MergeLiberal));
var shadowIndex = new int[] { };
var nodesDict = sequences.ToDictionary();
if (nodesDict.ContainsKey("ShadowIndex"))
{
Array.Resize(ref shadowIndex, shadowIndex.Length + 1);
Exts.TryParseIntegerInvariant(nodesDict["ShadowIndex"].Value,
out shadowIndex[shadowIndex.Length - 1]);
}
palette = new HardwarePalette();
foreach (var p in nodesDict["Palettes"].Nodes)
palette.AddPalette(p.Key, new ImmutablePalette(GlobalFileSystem.Open(p.Value.Value), shadowIndex), false);
sheetBuilder = new SheetBuilder(SheetType.Indexed);
var spriteCache = new SpriteCache(modData.SpriteLoaders, new string[0], sheetBuilder);
foreach (var s in nodesDict["Cursors"].Nodes)
LoadSequencesForCursor(spriteCache, s.Key, s.Value);
sheetBuilder.Current.ReleaseBuffer();
palette.Initialize();
}
PaletteReference CreatePaletteReference(string name)
{
var pal = palette.GetPalette(name);
return new PaletteReference(name, palette.GetPaletteIndex(name), pal);
}
void LoadSequencesForCursor(SpriteCache cache, string cursorSrc, MiniYaml cursor)
{
foreach (var sequence in cursor.Nodes)
cursors.Add(sequence.Key, new CursorSequence(cache, cursorSrc, cursor.Value, sequence.Value));
}
public bool HasCursorSequence(string cursor)
{
return cursors.ContainsKey(cursor);
}
public void DrawCursor(Renderer renderer, string cursorName, int2 lastMousePos, int cursorFrame)
{
var cursorSequence = GetCursorSequence(cursorName);
var cursorSprite = cursorSequence.GetSprite(cursorFrame);
var cursorSize = CursorViewportZoomed ? 2.0f * cursorSprite.size : cursorSprite.size;
var cursorOffset = CursorViewportZoomed ?
(2 * cursorSequence.Hotspot) + cursorSprite.size.ToInt2() :
cursorSequence.Hotspot + (0.5f * cursorSprite.size).ToInt2();
renderer.SetPalette(palette);
renderer.SpriteRenderer.DrawSprite(cursorSprite,
lastMousePos - cursorOffset,
palettes[cursorSequence.Palette],
cursorSize);
}
public CursorSequence GetCursorSequence(string cursor)
{
try { return cursors[cursor]; }
catch (KeyNotFoundException)
{
throw new InvalidOperationException("Cursor does not have a sequence `{0}`".F(cursor));
}
}
public void Dispose()
{
palette.Dispose();
sheetBuilder.Dispose();
}
}
}